1/*-2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD3 *4 * Copyright (c) 2010 Lawrence Stewart <lstewart@freebsd.org>5 * Copyright (c) 2010 The FreeBSD Foundation6 * All rights reserved.7 *8 * This software was developed by Lawrence Stewart while studying at the Centre9 * for Advanced Internet Architectures, Swinburne University of Technology, made10 * possible in part by grants from the FreeBSD Foundation and Cisco University11 * Research Program Fund at Community Foundation Silicon Valley.12 *13 * Portions of this software were developed at the Centre for Advanced14 * Internet Architectures, Swinburne University of Technology, Melbourne,15 * Australia by Lawrence Stewart under sponsorship from the FreeBSD Foundation.16 *17 * Redistribution and use in source and binary forms, with or without18 * modification, are permitted provided that the following conditions19 * are met:20 * 1. Redistributions of source code must retain the above copyright21 * notice, this list of conditions and the following disclaimer.22 * 2. Redistributions in binary form must reproduce the above copyright23 * notice, this list of conditions and the following disclaimer in the24 * documentation and/or other materials provided with the distribution.25 *26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE29 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF36 * SUCH DAMAGE.37 *38 * $FreeBSD: stable/12/sys/sys/khelp.h 326256 2017-11-27 15:01:59Z pfg $39 */4041/*42 * A KPI for managing kernel helper modules which perform useful functionality43 * within the kernel. Originally released as part of the NewTCP research project44 * at Swinburne University of Technology's Centre for Advanced Internet45 * Architectures, Melbourne, Australia, which was made possible in part by a46 * grant from the Cisco University Research Program Fund at Community Foundation47 * Silicon Valley. More details are available at:48 * http://caia.swin.edu.au/urp/newtcp/49 */5051 #ifndef _SYS_KHELP_H_52 #define _SYS_KHELP_H_5354 struct helper;
55 struct hookinfo;
56 struct osd;
5758/* Helper classes. */59 #define HELPER_CLASS_TCP 0x00000001
60 #define HELPER_CLASS_SOCKET 0x00000002
6162/* Public KPI functions. */63 int khelp_register_helper(struct helper *h);
6465 int khelp_deregister_helper(struct helper *h);
6667 int khelp_init_osd(uint32_t classes, struct osd *hosd);
6869 int khelp_destroy_osd(struct osd *hosd);
7071 void * khelp_get_osd(struct osd *hosd, int32_t id);
7273 int32_t khelp_get_id(char *hname);
7475 int khelp_add_hhook(struct hookinfo *hki, uint32_t flags);
7677 int khelp_remove_hhook(struct hookinfo *hki);
7879 #endif /* _SYS_KHELP_H_ */